142 lines
4.4 KiB
PHP
142 lines
4.4 KiB
PHP
<?php
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namespace nur;
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use nur\b\date\Date as D;
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use nur\b\date\Datetime as DT;
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use nur\b\date\Elapsed;
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/**
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* Class date: méthode pour gérer les dates au format français dd/mm/YYYY
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*/
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class date {
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static function is_datetime($date, ?array &$ms=null): bool {
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return is_string($date) && preg_match('/^(\d{1,2})[-\/]+(\d{1,2})[-\/]+(\d{2,4}) ([0-9]{1,2})[h:.,]([0-9]{1,2})(?:[:.,]([0-9]{1,2}))?$/', $date, $ms);
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}
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static function is_date($date, ?array &$ms=null): bool {
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return is_string($date) && preg_match('/^(\d{1,2})[-\/]+(\d{1,2})[-\/]+(\d{2,4})(?: 0{1,2}[h:.,]0{1,2}(?:[:.,]0{1,2})?)?$/', $date, $ms);
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}
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static function datetime(?int $timestamp=null): string {
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if ($timestamp === null) $timestamp = time();
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return strftime("%d/%m/%Y %H:%M:%S", $timestamp);
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}
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static function date(?int $timestamp=null): string {
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if ($timestamp === null) $timestamp = time();
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return strftime("%d/%m/%Y", $timestamp);
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}
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/**
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* corriger une année à deux chiffres qui est située dans le passé et
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* retourner l'année à 4 chiffres.
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*
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* par exemple, si l'année courante est 2019, alors:
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* - fix_past_year('18') === '2018'
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* - fix_past_year('19') === '1919'
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* - fix_past_year('20') === '1920'
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*/
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static function fix_past_year(int $year): int {
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if ($year < 100) {
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$y = getdate(); $y = $y["year"];
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$r = $y % 100;
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$c = $y - $r;
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if ($year >= $r) $year += $c - 100;
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else $year += $c;
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}
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return $year;
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}
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/**
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* corriger une année à deux chiffres et retourner l'année à 4 chiffres.
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* l'année charnière entre année passée et année future est 70
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*
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* par exemple, si l'année courante est 2019, alors:
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* - fix_past_year('18') === '2018'
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* - fix_past_year('19') === '2019'
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* - fix_past_year('20') === '2020'
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* - fix_past_year('69') === '2069'
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* - fix_past_year('70') === '1970'
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* - fix_past_year('71') === '1971'
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*/
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static function fix_any_year(int $year): int {
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if ($year < 100) {
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$y = getdate(); $y = $y["year"];
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$r = $y % 100;
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$c = $y - $r;
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if ($year >= 70) $year += $c - 100;
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else $year += $c;
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}
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return $year;
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}
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static function _ms2datetime(array $ms, ?string &$date, ?string &$time): void {
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$d = intval($ms[1]);
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$m = intval($ms[2]);
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$y = self::fix_any_year($ms[3]);
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$H = intval($ms[4]);
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$M = intval($ms[5]);
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$S = intval(isset($ms[6])? $ms[6]: 0);
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$date = sprintf("%02d/%02d/%04d", $d, $m, $y);
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$time = sprintf("%02d:%02d:%02d", $H, $M, $S);
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}
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static function _ms2date(array $ms, ?string &$date): void {
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$d = intval($ms[1]);
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$m = intval($ms[2]);
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$y = self::fix_any_year($ms[3]);
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$date = sprintf("%02d/%02d/%04d", $d, $m, $y);
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}
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/**
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* Analyser $datetime qui peut être de la forme 'dd/mm/YYYY HH:MM:SS' ou
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* 'dd/mm/YYYY' et initialiser les variables $date et $time
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*
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* s'il n'y a pas de composante 'heure' dans $datetime, $time reçoit la
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* valeur null.
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*
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* retourner true si $datetime était au format attendu, false sinon
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*/
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static function _split_datetime(?string $datetime, ?string &$date, ?string &$time): bool {
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$ms = null;
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if (self::is_datetime($datetime, $ms)) {
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self::_ms2datetime($ms, $date, $time);
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return true;
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} elseif (self::is_date($datetime, $ms)) {
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self::_ms2date($ms, $date);
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$time = null;
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return true;
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} else {
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return false;
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}
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}
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static function split_datetime($datetime, ?string &$date, ?string &$time): bool {
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if ($datetime === null || $datetime === false) return false;
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else return self::_split_datetime($datetime, $date, $time);
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}
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static function new($date, bool $null_is_now=false): ?DT {
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if ($null_is_now && $date === null) return new DT();
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elseif ($date === null) return null;
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elseif (is_int($date)) return new DT($date);
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return self::is_datetime($date)? new DT($date): new D($date);
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}
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static function before($date, $other): bool {
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if ($other === null) return true;
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if ($date === null) return false;
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return self::new($date)->before(self::new($other));
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}
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static function after($date, $other): bool {
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if ($other === null) return true;
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if ($date === null) return false;
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return self::new($date)->after(self::new($other));
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}
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static function get_elapsed($date, $now=null): Elapsed {
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return self::new($date, true)->getElapsed(self::new($now));
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}
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}
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